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Databases · beginner

SQL Basics: Ask Questions of Data

Learn SQL from zero on a real database that runs in your browser: read, filter, sort and summarise data, then add and change it.

5 lessonsAbout 57 minFree
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Finish every lesson, then sign in and pass the final assessment to earn a free certificate

Module 1: Reading data

  1. What Is SQL? Your First Queries10 min · Up next
  2. Filtering Rows with WHERE12 min · Not started
  3. Sorting, Limiting and Removing Duplicates10 min · Not started

Module 2: Summarising and changing data

  1. Summarising Data: COUNT, SUM, GROUP BY13 min · Up next
  2. Changing Data: INSERT, UPDATE, DELETE12 min · Not started

Questions about SQL Basics: Ask Questions of Data

What will I learn in SQL Basics: Ask Questions of Data?

Learn SQL from zero on a real database that runs in your browser: read, filter, sort and summarise data, then add and change it. The course has 5 lessons, organised in 2 modules: Module 1: Reading data; Module 2: Summarising and changing data.

How long does SQL Basics: Ask Questions of Data take?

About 57 minutes in total, across 5 lessons. You can learn at your own pace and stop and continue any time.

Do I need experience to take SQL Basics: Ask Questions of Data?

No. This course starts from zero and explains every new word the first time it appears.

Is SQL Basics: Ask Questions of Data free?

Yes. The whole course is free and you do not need an account to learn. A free account is only needed for the final assessment and the certificate.

Do I get a certificate for SQL Basics: Ask Questions of Data?

Yes, a free certificate of completion. Finish every lesson, sign in, and pass the 15-question final assessment with 80% or more. It is not an accredited qualification.

What should I learn after SQL Basics: Ask Questions of Data?

The next step is SQL Intermediate: Joins, Subqueries and Design.